Elasmobranchii (tubarões e raias) (sharks and rays) >
Myliobatiformes (Stingrays) >
Gymnuridae (Butterfly rays)
Etymology: Gymnura: Greek, gymnos = naked + Greek, oura = tail (Ref. 45335).
More on author: Fowler.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marinhas demersal. Subtropical
Northwest Pacific: known from the type locality, Kowloon, China. Not in Compagno's 1999 checklist (Ref. 35766).
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Ovoviviparous (Ref. 50449). Better reference needed.
Life cycle and mating behavior
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Distinct pairing with embrace (Ref. 205).
Eschmeyer, W.N. (ed.), 1999. Catalog of fishes. Updated database version of November 1999. Catalog databases as made available to FishBase in November 1999. (Ref. 33021)
Categoria na Lista Vermelha da IUCN (Ref. 130435)
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00352 - 0.01710), b=3.09 (2.89 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.8 ±0.6 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Muito baixo, tempo mínimo de duplicação da população maior que 14 anos (Fec assumed to be <10).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (51 of 100).
